600 CC Sportbike VS SUPERBIKE!?

first off all the bikes you mention are plenty fast for the street and are very similar. they are all sportbikes, and the honda rr is more narrowly focused as a racing sportbike compared to an f4i. a new 600rr is the lightest and fastest AND most expensive, i recommend that if you are new to this you get a used 600 and save some serious money. it will still be VERY fast. be careful, take an msf course and keep the rubber side down!